package com.jackiechan.util;

import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;

import java.io.IOException;
import java.io.InputStream;

public class MyBatisUtils {
    private static SqlSessionFactory factory = null;
    static {
        String config = "mybatis.xml";
        try {
            InputStream in = Resources.getResourceAsStream(config);
            SqlSessionFactoryBuilder builder = new SqlSessionFactoryBuilder();
            factory = builder.build(in);
        }catch (IOException e){
            System.out.println("创建SqlSession时出现IO错误！");
            e.printStackTrace();
        }
    }
    public static SqlSession getSqlSession(){
        SqlSession sqlSession = null;
        if(factory != null){
            sqlSession = factory.openSession();
        }
        return sqlSession;
    }
}
